Each handle comes with a standard screw with nuts and washer. Suits all doors up to 25mm thick. Longer screws available in a separate listing.

They are easy to affix when replacing existing shank knobs with all fittings supplied. You may need pliers to tighten fully. For a new door/drawers it's just a simple drilled hole needed. Any excess screw can be cut to size to give a neat reverse finish.